If a gas tank can hold 30 gallons, how many gallons does it contain when it is three-fifths full?

Plzzz maths ! quadratic sequences=an^2+c 1) 11,17,27,41,59 2) 7,16,31,52,79 3) 6,18,38,66,102 4) 0,9,24,45,72 5) 0,12,32,60,96

The vertices of a triangle are a(7,5), b(4,2), c(9,2). what is m

You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?